Gridsum Holding Inc.

Notice under Rule 12b25 of inability to timely file all or part of an annual report of form 20-F for period ending 2017-12-31

Notice of termination of registration of a class of securities under Section 12(b)

Current report of foreign issuer pursuant to Rules 13a-16 and 15d-16 Amendments

Notification filed by national security exchange to report the removal from listing and registration of matured, redeemed or retired securities

Current report of foreign issuer pursuant to Rules 13a-16 and 15d-16 Amendments

Current report of foreign issuer pursuant to Rules 13a-16 and 15d-16 Amendments

A correspondence can be sent as a document with another submission type or can be sent as a separate submission.

A correspondence can be sent as a document with another submission type or can be sent as a separate submission.

Current report of foreign issuer pursuant to Rules 13a-16 and 15d-16 Amendments

Current report of foreign issuer pursuant to Rules 13a-16 and 15d-16 Amendments

Current report of foreign issuer pursuant to Rules 13a-16 and 15d-16 Amendments

Qi Guosheng: Major Shareholders

Schedule filed to report going private transactions

MOON CAPITAL MANAGEMENT LP: Major Shareholders

LIGHT STREET CAPITAL MANAGEMENT, LLC: Major Shareholders

GOLDMAN SACHS & CO. LLC: Major Shareholders

Steamboat Ventures Asia, L.P.: Major Shareholders

Schedule filed to report going private transactions

Schedule filed to report going private transactions

Schedule filed to report going private transactions

Schedule filed to report going private transactions

Post-effective amendment to a S-8 registration statement

Post-effective amendment to a S-8 registration statement

Initial registration statement for securities to be offered to employees pursuant to employee benefit plans

Initial registration statement for securities to be offered to employees pursuant to employee benefit plans

Registration Withdrawal Request

Initial registration statement for securities to be offered to employees pursuant to employee benefit plans

Prospectus filed pursuant to Rule 424(b)(4)

Filing under Securities Act Rules 163/433 of free writing prospectuses

Draft registration statement submitted by Emerging Growth Company under Securities Act Section 6(e) or by Foreign Private Issuer under Division of Corporation Finance policy

Correspondence Related to Draft Registration Statement